diff --git a/components/jiecang_desk_controller/jiecang_desk_controller.cpp b/components/jiecang_desk_controller/jiecang_desk_controller.cpp
index e93ac9f..5446b79 100644
--- a/components/jiecang_desk_controller/jiecang_desk_controller.cpp
+++ b/components/jiecang_desk_controller/jiecang_desk_controller.cpp
@@ -54,18 +54,16 @@ namespace esphome {
             switch (message[0]) {
                 case 0x01:
                     ESP_LOGV("jiecang_desk_controller", "height 0x%0X%0X", message[2], message[3]);
-                    current_height = byte2float(message[2], message[3]);
+                    float new_height;
+                    new_height = byte2float(message[2], message[3]);
+                    if (new_height == current_height) return;
+                    current_height = new_height;
                     if (height != nullptr) height->publish_state(current_height);
 
                     if (height_pct != nullptr && limit_max != 0)
                         height_pct->publish_state((current_height - limit_min) / (limit_max - limit_min) * 100);
                     break;
 
-                case 0x0e:
-                    ESP_LOGV("jiecang_desk_controller", "unit 0x%0X", message[2]);
-                    if (unit != nullptr) unit->publish_state(message[2]);
-                    break;
-
                 case 0x20:
                     ESP_LOGV("jiecang_desk_controller", "limits 0x%0X  max %i min %i", message[2], (message[2] & 1), (message[2]>>4));
 
diff --git a/components/jiecang_desk_controller/jiecang_desk_controller.h b/components/jiecang_desk_controller/jiecang_desk_controller.h
index 4610c3c..f6718c5 100644
--- a/components/jiecang_desk_controller/jiecang_desk_controller.h
+++ b/components/jiecang_desk_controller/jiecang_desk_controller.h
@@ -34,7 +34,6 @@ namespace esphome {
                 void update() override;
 
                 void set_sensor_height(sensor::Sensor *sensor) { this->height = sensor; }
-                void set_sensor_unit(sensor::Sensor *sensor) { this->unit = sensor; }
                 void set_sensor_height_min(sensor::Sensor *sensor) { this->height_min = sensor; }
                 void set_sensor_height_max(sensor::Sensor *sensor) { this->height_max = sensor; }
                 void set_sensor_height_pct(sensor::Sensor *sensor) { this->height_pct = sensor; }
@@ -57,7 +56,6 @@ namespace esphome {
 
             protected:
                 Sensor *height{nullptr};
-                Sensor *unit{nullptr};
                 Sensor *height_min{nullptr};
                 Sensor *height_max{nullptr};
                 Sensor *height_pct{nullptr};